ABILITY
Which modal verb do we use to express ability in the present?
Can
Which modal verbs do we use to express obligation?
Must / Have to / Need to
Which modal verbs do we use to give advice?
Should / Ought to (shouldn't / ought not to)
(I advise you to... I advise against...)
Which modal verbs do we use fos requesting?
Can or may
“People who smoke lose at least 10 years of life expectancy compared with people who never smoked”
You _______ smoke if you want to avoid lung cancer.
mustn't
Which modal verb do we use to express ability in the past?
Could
Which modal verbs do we use to express prohibition?
must not / mustn't (It's forbidden. It's not allowed.
Which modals verbs do we use for suggesting?
should / shall
Which modal verbs do we use for probability?
May and might
Washing hands saves lives, it is the most economical, simple and effective measure to reduce the risk of infections.
You ________ wash your hands frequently to avoid infections.
Should
Is it possible to use could for present abilities?
No, it is not.
Is 'should' a modal verb to express obligation?
No, it isn't
Can should be used with ¨to¨?
No!!!
Is must a modal verb to express possibility?
No, it isn't
Eating healthy helps prevent, delay, and manage heart disease, type 2 diabetes, and other chronic diseases.
You ______ reduce the risk of heart disease by eating a balanced diet.
Can
True or false: can is more polite than could
False
Can must be used with ¨to¨?
NO!!!
True or false: Shouldn't is used for prohibition
false
True or false: May is more formal than might.
True
Regular exercise _______ reduce your risk of heart disease.
might / may
Choose the correct modal verb: She (can't /couldn't) find any books on Geology at the library right now.
She can't find any books on Geology at the library right now.
Choose the correct modal verb: You (must/should/can) respect the traffic lights.
You must respect the traffic lights.
Choose the correct modal verb: (should/might/could) I go to the doctor?
should I go to the doctor?
Choose the correct modal verb: It (may/can/could) be faster to drive by car than bus.
It may/might be faster to drive by car than bus.
You _______ improve your immune system by taking vitamins and minerals.
Could